html,
body,
h1,
h2,
h3,
h4,
h5,
h6,
div,
ul,
ol,
li,
p,
pre,
hr,
figure,
section,
nav,
header,
aside,
footer,
span {
    margin: 0;
    padding: 0
}

html,
body,
fieldset,
img,
iframe,
abbr {
    border: 0
}

li {
    list-style: none
}

textarea {
    overflow: auto;
    resize: none
}

a,
button {
    cursor: pointer
}

h1,
h2,
h3,
h4,
h5,
h6,
em,
strong,
b {
    font-weight: 700
}

a,
a:hover {
    text-decoration: none;
}

body,
html {
    width: 100%;
    font-weight: 400;
}

html {
    -ms-text-size-adjust: 100%;
    -webkit-text-size-adjust: 100%;
    font-family: "Microsoft YaHei", "Helvetica Neue", Arial, HelveticaNeue, Helvetica, "BBAlpha Sans", sans-serif
}

body {
    background: #000;
    opacity: 1;
    -webkit-transition: opacity 500ms ease-in;
    -o-transition: opacity 500ms ease-in;
    transition: opacity 500ms ease-in
}

a {
    text-decoration: none
}

input {
    -webkit-appearance: none
}

* {
    outline: 0;
    -webkit-tap-highlight-color: transparent;
    -webkit-touch-callout: none;
    -webkit-focus-ring-color: rgba(0, 0, 0, 0)
}

a {
    text-decoration: none
}

img {
    display: block
}

html {
    font-size: 312.5%
}

@media screen and (max-width: 359px) and (orientation:portrait) {
    html {
        font-size: 266.67%
    }
}

@media screen and (min-width: 360px) and (max-width:374px) and (orientation:portrait) {
    html {
        font-size: 300%
    }
}

@media screen and (min-width: 384px) and (max-width:399px) and (orientation:portrait) {
    html {
        font-size: 320%
    }
}

@media screen and (min-width: 400px) and (max-width:413px) and (orientation:portrait) {
    html {
        font-size: 333.33%
    }
}

@media screen and (min-width: 414px) and (max-width:431px) and (orientation:portrait) {
    html {
        font-size: 345%
    }
}

@media screen and (min-width: 432px) and (max-width:479px) and (orientation:portrait) {
    html {
        font-size: 360%
    }
}

@media screen and (min-width: 480px) and (max-width:639px) and (orientation:portrait) {
    html {
        font-size: 400%
    }
}

@media screen and (min-width: 640px) and (orientation:portrait) {
    html {
        font-size: 533.33%
    }
}

.clearfix:after {
    visibility: hidden;
    display: block;
    font-size: 0;
    content: " ";
    clear: both;
    height: 0
}

.clearfix {
    clear: both;
    zoom: 1
}

.hide {
    display: none
}

.clr:after {
    clear: both;
    visibility: hidden;
    content: '.';
    height: 0;
    display: block
}

.clr {
    clear: both;
    *zoom: 1
}



.comm-nav {
    padding: 2rem 1rem;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 90;
    background-color: rgba(255, 255, 255, 0.9);
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    display: none;
}

.comm-nav a {
    display: block;
    width: 5rem;
    height: 1.5rem;
    line-height: 1.5rem;
    margin: 0 auto;
    text-align: center;
    font-size: .5rem;
    color: #000;
    border-bottom: 1px solid #bebdbd;
}

.comm-nav-top {
    display: -webkit-box;
    display: -webkit-flex;
    display: -moz-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
    -webkit-align-items: center;
       -moz-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    -webkit-box-pack: justify;
    -webkit-justify-content: space-between;
       -moz-box-pack: justify;
        -ms-flex-pack: justify;
            justify-content: space-between;
    width: 100%;
    height: 1.2rem;
    background: rgba(255, 255, 255, .95);
    position: fixed;
    top: 0;
    z-index: 100;
}

.comm-nav-logo {
    display: block;
    width: 2rem;
    height: .8rem;
    margin-left: .2rem;
    background: url('../img/logo.png') no-repeat;
    background-size: 100% auto;
}

.comm-nav-btn {
    display: -webkit-box;
    display: -webkit-flex;
    display: -moz-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -webkit-flex-direction: column;
    -moz-box-orient: vertical;
    -moz-box-direction: normal;
    -ms-flex-direction: column;
    flex-direction: column;
    -webkit-box-pack: justify;
    -webkit-justify-content: space-between;
    -moz-box-pack: justify;
    -ms-flex-pack: justify;
    -webkit-box-align: center;
    -webkit-align-items: center;
    -moz-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    justify-content: space-between;
    width: .5rem;
    height: .36rem;
    padding: .27rem .2rem;
    overflow: hidden;
    z-index: 2;
}

.comm-nav-btn span {
    display: block;
    background: #181818;
    width: 0.5rem;
    height: 4px;
    border-radius: .2rem;
    -webkit-transition: all .3s ease-in-out;
    -o-transition: all .3s ease-in-out;
    transition: all .3s ease-in-out;
}

.actived span:nth-of-type(1) {
    -webkit-transform: translateY(.145rem);
    -ms-transform: translateY(.145rem);
    transform: translateY(.145rem);
}

.actived span:nth-of-type(3) {
    -webkit-transform: translateY(-.145rem);
    -ms-transform: translateY(-.145rem);
    transform: translateY(-.145rem);
}

footer {
    width: 100%;
    padding: .4rem;
    -webkit-box-sizing: border-box;
       -moz-box-sizing: border-box;
            box-sizing: border-box;
    background-color: #2F3032;
}

.footer-nav {
    margin: 0 auto;
    display: -webkit-box;
    display: -webkit-flex;
    display: -moz-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
    -webkit-align-items: center;
       -moz-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    -webkit-box-pack: justify;
    -webkit-justify-content: space-between;
       -moz-box-pack: justify;
        -ms-flex-pack: justify;
            justify-content: space-between;
    width: 70%;
    height: 1rem;
    color: #fff;
    font-size: .24rem;
}

.footer-nav a {
    display: block;
    color: #fff;
    font-size: .24rem;
}

.footer-msg p {
    display: block;
    font-size: .21rem;
    color: #B7B8BA;
    text-align: center;
    line-height: 150%;
}


/*keyframes*/

@-webkit-keyframes fadeOutUp {
    0% {
        opacity: 1;
        filter: alpha(opacity=100)
    }
    100% {
        opacity: 0;
        filter: alpha(opacity=0);
        -webkit-transform: translate3d(0, -100%, 0)
    }
}

@keyframes fadeOutUp {
    0% {
        opacity: 1;
        filter: alpha(opacity=100)
    }
    100% {
        opacity: 0;
        filter: alpha(opacity=0);
        -webkit-transform: translate3d(0, -100%, 0);
        transform: translate3d(0, -100%, 0)
    }
}

@-webkit-keyframes bounceInDown {
    0%,
    60%,
    75%,
    90%,
    100% {
        -webkit-transition-timing-function: cubic-bezier(0.215, .61, .355, 1)
    }
    0% {
        opacity: .01;
        filter: alpha(opacity=1);
        -webkit-transform: translate3d(0, -16rem, 0)
    }
    60% {
        opacity: 1;
        filter: alpha(opacity=100);
        -webkit-transform: translate3d(0, 15px, 0)
    }
    75% {
        -webkit-transform: translate3d(0, -8px, 0)
    }
    90% {
        -webkit-transform: translate3d(0, 4px, 0)
    }
    100% {
        -webkit-transform: none
    }
}

@keyframes bounceInDown {
    0%,
    60%,
    75%,
    90%,
    100% {
        -webkit-transition-timing-function: cubic-bezier(0.215, .61, .355, 1);
        -o-transition-timing-function: cubic-bezier(0.215, .61, .355, 1);
        transition-timing-function: cubic-bezier(0.215, .61, .355, 1)
    }
    0% {
        opacity: .01;
        filter: alpha(opacity=1);
        -webkit-transform: translate3d(0, -16rem, 0);
        transform: translate3d(0, -16rem, 0)
    }
    60% {
        opacity: 1;
        filter: alpha(opacity=100);
        -webkit-transform: translate3d(0, 15px, 0);
        transform: translate3d(0, 15px, 0)
    }
    75% {
        -webkit-transform: translate3d(0, -8px, 0);
        transform: translate3d(0, -8px, 0)
    }
    90% {
        -webkit-transform: translate3d(0, 4px, 0);
        transform: translate3d(0, 4px, 0)
    }
    100% {
        -webkit-transform: none;
        transform: none
    }
}
@-webkit-keyframes bounceInUp {
    0%,
    60%,
    75%,
    90%,
    100% {
        -webkit-transition-timing-function: cubic-bezier(0.215, .61, .355, 1);
        -o-transition-timing-function: cubic-bezier(0.215, .61, .355, 1);
        transition-timing-function: cubic-bezier(0.215, .61, .355, 1)
    }
    0% {
        opacity: 1;
        -webkit-transform: translate3d(0, 16rem, 0);
        transform: translate3d(0, 16rem, 0)
    }
    60% {
        opacity: 1;
        -webkit-transform: translate3d(0, -15px, 0);
        transform: translate3d(0, -15px, 0)
    }
    75% {
        opacity: 1;
        -webkit-transform: translate3d(0, 8px, 0);
        transform: translate3d(0, 8px, 0)
    }
    90% {
        opacity: 1;
        -webkit-transform: translate3d(0, -4px, 0);
        transform: translate3d(0, -4px, 0)
    }
    100% {
        opacity: 1;
        -webkit-transform: none;
        transform: none
    }
}
@keyframes bounceInUp {
    0%,
    60%,
    75%,
    90%,
    100% {
        -webkit-transition-timing-function: cubic-bezier(0.215, .61, .355, 1);
        -o-transition-timing-function: cubic-bezier(0.215, .61, .355, 1);
        transition-timing-function: cubic-bezier(0.215, .61, .355, 1)
    }
    0% {
        opacity: 1;
        -webkit-transform: translate3d(0, 16rem, 0);
        transform: translate3d(0, 16rem, 0)
    }
    60% {
        opacity: 1;
        -webkit-transform: translate3d(0, -15px, 0);
        transform: translate3d(0, -15px, 0)
    }
    75% {
        opacity: 1;
        -webkit-transform: translate3d(0, 8px, 0);
        transform: translate3d(0, 8px, 0)
    }
    90% {
        opacity: 1;
        -webkit-transform: translate3d(0, -4px, 0);
        transform: translate3d(0, -4px, 0)
    }
    100% {
        opacity: 1;
        -webkit-transform: none;
        transform: none
    }
}
@-webkit-keyframes fadeInUp {
    0% {
        opacity: 0;
        filter: alpha(opacity=0);
        -webkit-transform: translate3d(0, -100%, 0)
    }
    100% {
        opacity: 1;
        filter: alpha(opacity=100);
        -webkit-transform: none
    }
}

@keyframes fadeInUp {
    0% {
        opacity: 0;
        filter: alpha(opacity=0);
        -webkit-transform: translate3d(0, -100%, 0);
        transform: translate3d(0, -100%, 0)
    }
    100% {
        opacity: 1;
        filter: alpha(opacity=100);
        -webkit-transform: none;
        transform: none
    }
}

@-webkit-keyframes fadeInDown {
    0% {
        opacity: .01;
        filter: alpha(opacity=1);
        -webkit-transform: translate3d(0, 100%, 0);
        transform: translate3d(0, 100%, 0)
    }
    100% {
        opacity: 1;
        filter: alpha(opacity=100);
        -webkit-transform: translate3d(0, 0, 0);
        transform: translate3d(0, 0, 0)
    }
}

@keyframes fadeInDown {
    0% {
        opacity: .01;
        filter: alpha(opacity=1);
        -webkit-transform: translate3d(0, 100%, 0);
        transform: translate3d(0, 100%, 0)
    }
    100% {
        opacity: 1;
        filter: alpha(opacity=100);
        -webkit-transform: translate3d(0, 0, 0);
        transform: translate3d(0, 0, 0)
    }
}

@-webkit-keyframes fadeInLeft {
    0% {
        opacity: .01;
        filter: alpha(opacity=1);
        -webkit-transform: translate3d(-100%, 0, 0);
        transform: translate3d(-100%, 0, 0)
    }
    100% {
        opacity: 1;
        filter: alpha(opacity=100);
        -webkit-transform: translate3d(0, 0, 0);
        transform: translate3d(0, 0, 0)
    }
}

@keyframes fadeInLeft {
    0% {
        opacity: .01;
        filter: alpha(opacity=1);
        -webkit-transform: translate3d(-100%, 0, 0);
        transform: translate3d(-100%, 0, 0)
    }
    100% {
        opacity: 1;
        filter: alpha(opacity=100);
        -webkit-transform: translate3d(0, 0, 0);
        transform: translate3d(0, 0, 0)
    }
}

@-webkit-keyframes fadeInRight {
    0% {
        opacity: .01;
        filter: alpha(opacity=1);
        -webkit-transform: translate3d(100%, 0, 0);
        transform: translate3d(100%, 0, 0)
    }
    100% {
        opacity: 1;
        filter: alpha(opacity=100);
        -webkit-transform: translate3d(0, 0, 0);
        transform: translate3d(0, 0, 0)
    }
}

@keyframes fadeInRight {
    0% {
        opacity: .01;
        filter: alpha(opacity=1);
        -webkit-transform: translate3d(100%, 0, 0);
        transform: translate3d(100%, 0, 0)
    }
    100% {
        opacity: 1;
        filter: alpha(opacity=100);
        -webkit-transform: translate3d(0, 0, 0);
        transform: translate3d(0, 0, 0)
    }
}


/* animate */

.nav-show {
    -webkit-animation: bounceInDown .5s 0s ease-in-out both;
    animation: bounceInDown .5s 0s ease-in-out both
}

.nav-hide {
    -webkit-animation: fadeOutUp .5s 0s ease-in-out both;
    animation: fadeOutUp .5s 0s ease-in-out both
}